Propeller guard



May 14, 1929. e. PETERSON PROPEL-LER GUARD Filed July 5, 1928 INVENTORGabai'lpefensvn MviI ATTQRNEY Patented May 14, 1929.

1 OFFICE.

GABULL PETERSON, OETAR PON SPRINGS, FLORIDA.

PROPELLER GUARD.

Application filed July 5,

This invention relates to propeller guards. An object of the inventionis the provision of a guard for a propeller for those types of boatswhich are used for diving purposes and in which it is necessary toprevent fouling the life line and hose connected with the divers outfit,the guard being in the form of a cage which is readily removable fromits guarding positionwhen 1 desired. 7 V

A further object of the invention is the provision of a guard for apropeller which is in the form of a pair of cages adapted to bereniovably secured in position at the opposite sides of the keelextension of the boat with the cages being secured to a rod which is'slidably mounted in guides adjacent the usual rudder.

This invention will be best understood from a consideration of thefollowing detailed description, in connection with the accompanyingdrawings; nevertheless, it is to be understood that the invention is notcon-- fined to the disclosure being susceptible of such changes andmodifications as shall define no material departure from the salient.

features of the invention as expressed in the appended claims. 7

In the drawings Figure 1 is a side view in elevation of a guardconstructed according to the principles of my invention and applied tothe keel extension of a boat, f

Figure 2 is an end view of the same,

Figure 3 is a vertical section taken along the line 33 of Fig. 1,

Figure 4 is a horizontal section taken along the line 4-4 ofFig. 3,

Figure 5 is a vertical section taken along the line 5-5of Fig. 1. I

Referring more particularly-to therdrawings, 10 designates the hull of aboat of the type used for diving purposes and in the sponge fishingfleets. The stern of the boat is provided with a keel extension 11 whichextends centrally and vertically of the boat. The keel extension has anopening 12 to accommodate the propeller 13. A rudder 14 is mounted onthe keel extension and may be controlled by a tiller 15. The presentin-.

' vention provides a guard in the'shape of a basket located upon eachside of'the opening' 12 whereby the propeller 13 is comletely encasedand will prevent the usual iife line and hose coming in contacttherewith. Each propeller guard consists of a 1928. seri No. 290,431

rod 20, a rod 21, which is bent to conform to the contour of the basketor protecting device, and horizontally disposed bars 22 which have oneof their ends secured to the rod 20, and their other ends to the rod 21.A transverse bar 23 is secured at its upper ends to portions of therod21 and also the bars 22. The bars 22 are bent intermediate their endsin order to properly space the guard from the propeller blades.

A pair of ,guides 30 are secured to the keel extension 11 and inparallel relation with the rod 20 and receive the edgesof a plate 31which is slidably mounted in the guides. Bearings 32 project from theplate 31 in spaced relation and are provided with passages 33 to receivethe rod 20. These bearings are split and are provided with a cap 34which is bolted at 35 to the bearings 32. By this construction it willbe seen that the rod 20 will be removed from the plate 31, as desired.

The guides 30, as shown more particularly in Fig. 4, are of angle ironconstruction and consist ofa flange 40 having a right angular portion 41from which projects a flange 42 at right angles to the portion 41 whichis spaced from the keel 11 to receive the'edges 43 of the plate 31. V

The lower end of the rod 20 is located within a socket 455 which issecured to the keel extension 11. A collar 46 is secured to the rod 20above the upper bearing 32, while the collar 47 is secured to the rod 20below the lower bearing 32. These collars maintain the rod 20 inposition on the plate 31, while permitting the plate to be moved in itsguides in a vertical position.

' A plurality of cleats 50, 51 and 52 an secured in spaced relation, asshown at 53,

to the keel extension of the boatand are provided with an ofiset flange5 1 providing a socket 55 to receive portions of the rod 21 which formsthe periphery of each guard, so that when the guard is in position,these cleats will aid in maintaining the guard in operative relationwith the propeller 13.

A handle 60 is secured at 61 to the rod 20 guides 30, when placed in aposition where it will not interfere with the operation of the propellerand prevent the proper speed of propulsion of the boat. However, whenthe divers are at work and the boat is moved from one position toanother, the guards are let down until the lower portion of the rod 20is received by the cleats 50 to 52 inclusive, whence it is held inposition. r

I claim:

1-. A propeller guard-comprising a pair of open work guard members, arod rigidly connected with each guard member, means for retaining thefree end of a guard in protective relation with the propeller, means forslidably mounting the rod whereby reciprocation of the rod will releasethe guard from the retaining means and move said guard out of operativerelation withthe propeller.

2. A propeller guardwcomprising a pair of open work guard members, a rodslidably mounted and rigidly, connected to a guard member, means forretaining the free end of the guard in protective relation with thepropeller, a plate secured to the rod and guides receiving the platewhereby the rod may be reciprocated, and move the guard to aninoperative position andouto1 protective relation with the propeller.

3. In a propeller guard comprising a pair of openwork guard members, arod slidably mounted and'rigidly connected to a guard member, means forretaining the free end of the guard in protective relation with thepropeller, a plate secured to the rod and guides receiving the platewhereby the rod may be reciprocated, and move the guard to aninoperative position and out of protective relation with the propeller,a socket in line with the rod and adapted to receive one end of the rodwhen the guard is retained in operative position.

GABULL rnrnnson.

